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Property, plant and equipment - Movements in impairment of PP&E (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Movements in impairment of PP&E |  |  |
Property, plant and equipment at beginning of period | $ 23,165 | $ 17,963 |
Additions | (316) | (383) | $ (199)
Property, plant and equipment at end of period | 28,538 | 23,165 | 17,963
PP&E without materials | Accumulated impairment |  |  |
Movements in impairment of PP&E |  |  |
Property, plant and equipment at beginning of period | (282) | (203) |
Additions | (234) | (367) |
Uses | 211 | 288 |
Property, plant and equipment at end of period | $ (305) | $ (282) | $ (203)

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- Definition The decrease in property, plant and equipment resulting from disposals and retirements. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard -URIDate 2017-03-09 + Details
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Balance Type: | credit
Period Type: | duration

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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2017-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=16&date=2017-03-01&anchor=para_73_e&doctype=Standard -URIDate 2017-03-09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2017-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2017-03-01&anchor=para_54_a&doctype=Standard -URIDate 2017-03-09 + Details
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- Definition The amount of gain on disposal, impairment and disposal of property, plant and equipment. + References No definition available. + Details
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Namespace Prefix: | teo_
Data Type: | xbrli:monetaryItemType
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Period Type: | duration

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- References No definition available. + Details
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- Details
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- Details
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